str = <<EOT
QR-Code:какой-то текст
QR-Code:еще какой-то текст
QR-Code:текст для кода
QR-Code:текст для кодирования
scanned 6 barcode symbols from 6 images
EOT
puts str.scan(/QR-Code:(.*)\n/)
c3RyID0gPDxFT1QKUVItQ29kZTrQutCw0LrQvtC5LdGC0L4g0YLQtdC60YHRggpRUi1Db2RlOtC10YnQtSDQutCw0LrQvtC5LdGC0L4g0YLQtdC60YHRggpRUi1Db2RlOtGC0LXQutGB0YIg0LTQu9GPINC60L7QtNCwClFSLUNvZGU60YLQtdC60YHRgiDQtNC70Y8g0LrQvtC00LjRgNC+0LLQsNC90LjRjwpzY2FubmVkIDYgYmFyY29kZSBzeW1ib2xzIGZyb20gNiBpbWFnZXMKRU9UCnB1dHMgc3RyLnNjYW4oL1FSLUNvZGU6KC4qKVxuLyk=